749901 has 4 divisors (see below), whose sum is σ = 999872. Its totient is φ = 499932.

The previous prime is 749899. The next prime is 749909. The reversal of 749901 is 109947.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 749901 - 2¹ = 749899 is a prime.

It is a D-number.

It is a Duffinian number.

749901 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (749909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124981 + ... + 124986.

It is an arithmetic number, because the mean of its divisors is an integer number (249968).

2⁷⁴⁹⁹⁰¹ is an apocalyptic number.

It is an amenable number.

749901 is a deficient number, since it is larger than the sum of its proper divisors (249971).

749901 is a wasteful number, since it uses less digits than its factorization.

749901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249970.

The product of its (nonzero) digits is 2268, while the sum is 30.

The square root of 749901 is about 865.9682442215. The cubic root of 749901 is about 90.8520318004.

The spelling of 749901 in words is "seven hundred forty-nine thousand, nine hundred one".